<!DOCTYPE html>
<html lang="en" style="
    position:absolute;
    width: 100%;
    height: 100%;">
<head>
    <meta charset="UTF-8">
    <title>Welcome</title>
</head>
<body>
        <h1 style="text-align: center;
                    padding-top: 200px;">
            Welcome hoyue!</h1>
</body>
</html>